Synopsis：Once a billionaire titan at the helm of the world’s largest defense contractor, Jack has quietly stepped down and now lives incognito as a janitor at his son’s elite school, just to be near his family. When his son kicks him out to make room for a new baby, Jack’s life takes an unexpected turn. After he bravely rescues a female student from danger, she introduces him to her icy, no‑nonsense mother, Emma, the school’s formidable headmistress. To protect Emma from relentless power plays by the scheming dean, Jack enters into a contract marriage with her. From crushing the dean’s plots to pulling the school back from the brink of bankruptcy, Jack keeps stepping in at critical moments. And just as Emma is about to be disgraced and removed from the board, he pours in billions to save her and the school—revealing his greatest secret: the “humble janitor” is actually the richest man in the world.